Improvement in gas-stoves



E. 1. CALDWELL.

Gas Stove.

No. 49,469. Patented Aug. 15,1865.

UNITeD STATES PATENT -OFF1cE.

ELlJAH J. CALDWELL, OF NEW YORK, N. Y., ASSIGNOR TO HIlllS'EL'F ANDALEXR. M. LESLEY, OF SAME PLACE.

IM PROVEM ENT-.IN GAS-STOVES.

Specification forming part of Letters Patent No. 49,469, dated August1.5, 1865.

To all 'whom it may concern:

Be it known that I, ELTJAH J. CALDWELL, ot' the city, county, and Stateof New York, have invented certain new and useful Im prove- .ments inGas-Stoves; and I do hereby declare the following to be a full, clear,and exact dcscription thereof, reference being had to the accompanyingdrawings, figures, and letters of reference making part ot' thisspecification.

Of the said drawings, Figure lis a top view` of my gas-stove. Fig. 2 isa vertical section, and Figs. 3 and 4 show parts in detail.

Similar letters ot' reference indicate like parts in all the drawings.

In the use of gas-stoves heretofore made, which have the tube open, muchdifliculty is experienced from the water boiling over and rusting outthe sieve through which the gas passes, and also from the gas blowingdownward when it is turned down.

My invention is designed to obviate theseV difficulties, and also toobtain better radiation and greater heat; and it consists in combiningwith the cylinder of a stove a tube provided with a sieve andperforations and aian ged top, as will be fully set forth hereinafter.

To enable others skilled in the art to make and use my invention, I willdescribe the construction `and operation thereof.

A represents the cylinder of a stove,1nade of sheet-iron, fitted to aperforated cast-iron base, B, and mounted 'by a cast top, C, the wholebeing secured together by bolts b b.

In the center of the base B is cast a cylinder, E, which projectsupward, and upon which the tube F is connected by a frictionjoint.

To the bottom of the cast. bed is secured the supply-pipe D by means ofal bolt, o,whicl1 pipe has a small hole, e, for the gas to pass up thecylinder F. In this tube F, 1 secure, by a frictionjoin t, d, a tinewire sieve, G, through which the gas passes. VThe upper part of the tubeH is perforated, as shown at a a, around the cylinder and close up tothe ange H. y

The operation will be as follows: Gas, being communicated by a rubbertube orsuitable` pipe, will pass through the pipe l) and up the,cylinder F, and as the bottom of the tube is open, a current of airpasses up and is freely mixed with the gas. The gas passes through thepert'orat-ions a. a, where it is ignited, and

passes up around theiiangeH in a continuons sheet of tlame, and givesout a steady, power ful heat.

ven ts any accumulation of dirt or passage of boiling` water upon thesieve, which is the case where the cylinder is open at the top. The"`cylinder A, of the tube or cylinder F, sieve G,

and perforated'anged top H,oonstructed and operating togethersubstantially as described,

and for the purposes specified. u

, ELIJAH J. CALDWELL.

Witnesses: Y l

C. A. DURGTN, W. Wear.

The flanged cap H serves a. twofold l y purpose, acting as a radiator,andtalso pre-"m

